Concentrator.



, Patented Nov. [8, I902. A. TEN WINKEL.

CONCENTRATOR.

(Application filed Jan1 4, 1802.)

2 Sheets-Sheet I.

(No Model.)

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' Patented Nov. l8, I902. A. TEN WINKEL.

CONGENTRATOR.

(Application filed Jan. 4, 1902.)

2 Sheets-8heat 2.

11V VEN T 0R A 76/7 fi lh/re/ ATTORNEY.

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(No Model.)

ATTENT union.

AUGUST TEN WINKEL, OF DENVER, COLORADO, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, OF ONE-HALF TO STANLEY I-I. BISSELL, OF DENVER, COLORADO.DWIGHT BISSELL, OF REDWOOD FALLS, MINNESOTA, AND FLORENCE M. COTTON, OFMINNEAPOLIS, MINNESOTA.

CONCENTRATOR.

SPECIFICATION formingpart of Letters Patent No. 713,814, dated November18, 1902.

Application filed January 4,1902. Serial No- BBAOOt- (No model.)

To ctZZ whom it may concern:

Be it known that 1, AUGUST TEN WINKEL, a citizen of the United States ofAmerica, residing at Denver, in the county of Arapahoe and State ofColorado, have invented certain new and useful Improvements inConcentrators; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin IQ the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to characters of referencemarked thereon, which form a part of this specification.

My invention relates to improvements in 0reconcentrating apparatus; andit consists of the features,arrangements, and combinations hereinafterdescribed and claimed,all of which will be fully understood by referenceto the accompanying drawings, in which is illustrated an embodimentthereof.

In the drawings, Figure 1 is a top or plan view of a concentrating-tableequipped with my improvements. Fig. 2 is a section taken on the line a:a, Fig. 1, the parts being enlarged. Fig. 3 is a side elevation of theap paratus. Fig. 4 is an end elevation of the same, shown on a largerscale. In this view the end flange of the table and screen, as well asthe end frame-bar of the screen, is removed to better disclose thevarious parts of the apparatus. Fig. 5 is a section taken on the line y3 Fig. 1, shown on a larger scale. Fig. 6 is a section taken on the line10 w, Fig. 1, still 5 further enlarged. Fig. 7 is a plan viewillustrating the construction of the screen-frame, whereby it may beadjusted to regulate the tension of the screen fabric.

The same reference characters indicate the same parts in all the views.

Let the numeral 5designateasuitable relatively stationary foundation orsupport. Upon this support is mounted a table 6, which is transverselyinclined and arranged to vi- 5 brate or reciprocate longitudinallythrough the instrumentality of a suitable operating mechanism,conventionally shown in the drawings and designated by the numeral 7.

This longitudinal vibration is of such character as to give the materialunder treatment on the table a tendency to travel fromthe head towardthe tail or foot of the table, being from the right toward the left,referring to Figs. 1 and 3. This table is provided with longitudinalrifiles extending thereon from the head toward the foot, along which theconcentrates travel, the latter being discharged at the tail of thetable, while the gangue is carried by wash-water discharged upon theupper edge of the table transversely downwardly and discharged over thelower edge of the table into a waste-launder 8.

Covering a suitable area embracing the upper right-hand corner of thetable, referring to Fig. 1, is a water-receptacle 9, mounted on thetable and arranged to move therewith. The area of this water-receptacleis approximately indicated by the rectangular space outlined at theupper right-hand corner of Fig. 1. Located withinthis water-receptacleis a perforated plate 10, While at the top of the receptacle is a plate12, having projections 12, formed by pressing the metal upwardly frombelow. The tops of these projections are provided with openings formingnozzles adapted to discharge water upwardly as the latter is forced intothe water-receptacle from below. Mounted above the water-receptacle andarranged to move independently of said receptacle and the table is aframe 13, to which is attached in any suitable manner a screen 14 ofsuitable mesh. As shown in the drawings, the edge of the screen isinserted in a slot formed in the outer edge of the frame and fastened bywedges, as indicated at 14. The plane of this screen is sufficientlyabove the extremities of the nozzles 12 to allow the screen perfectfreedom of movement without engaging said nozzles or projections. Areciprocating movement is imparted to this screen from an eccentric 15.The movement of the screen is independent of the movement of the table.The screen and table may, however, if desired, be arranged to move inunison by passing a bolt 16 (see Fig. 6) through 5 the frame of thescreen into the table. In

this event the screen is disconnected from its eccentric and moves inunison with the table.

material to be treated is fed in the form of pulp from the box 18 to thescreen 14 the water is forced up from the receptacle below through theaforesaid projections or nozzles 12 and through the screen 14. When thiswater meets the pulp, it thins the latter and causes the finer mineralparticles to pass through the screen to the plate 12 below. These finermineral particles travel longitudinally on the plate 12 or parallel withthe riflles 17 and are discharged upon the body of the table at theleft-hand extremity of the said plate, thus separating the finer mineralvalues from the mass of gangue, whose tendency is to move transverselydownwardly over the lower edge of the table into the tailings-trough orwaste-launder 8. The coarser mineral values pass over thescreen with thegangue to the body of the table, where the separation is effected by thecombined action of the Water, the vibratory motion of the table, and theinfluence of the longitudinal riffles 20, with which the body of thetable is provided. These riffles, as shown in the drawings, have anundulating upper edge or face, whose tendency is to retard the rearwardmovement or travel of the mineral particles or concentrates, whereby abetter separation from the gangue is effected. The concentratesfollowing the line of the riffies 20 are finally discharged into alaunder 21 at the tail of the table.

The head extremity of the upper side of the screen 13 is provided with aflange or upwardly-projecting rim 13*, which retains the material inplace thereon.

The screen-frame may be constructed to reciprocate on the table in anysuitable manner. As shown in the drawings, the frame of the table isprovided with a V-shaped rib or track 22, which engages a groove in thescreen-frame and allows the latter to slide freely back and forth. Thevibratory movement of the table on its foundation is accomplished by asimilar construction, as shown at 23.

The screen-frame is preferably constructed as shown in Fig. 7, in whichthe two side bars A are connected by a rod D, having threadedextremities entering sockets formed in the side bars. To these threadedportions of the rod are applied nuts 0, which when screwed against thebars will force the latter outwardly and tighten the screen or increaseits tension. The bars A are provided with tenons A, which engageenlarged mortises formed in the end bar B, thus permitting the side barssufficient range of movement as the nuts are turned to allow thenecessary adjustment of the screens tension. The screen fabric is notshown in Fig. '7.

The feed-water is discharged upon the upper part of the table in therear of the screen 14 from a perforated pipe 24, provided with Valves orstop-cocks 25 for regulating the water discharge.

The upper part of the table in the rear of the screen 14 is providedwith projections 26, which extend above the surface of the table andfacilitate the separation of the mineral from the gangue.

Having thus described my invention, what I claim is- 1. The combinationwith a transversely-in clined concentrating-table having a movementwhose tendency is to carry the material longitudinally from the headtoward the tail of the table, and means located at one of the uppercorners of the table for feeding pulp thereto, of a water-receptaclemounted on the table and covering a suitable area at the orefeed corner,a screen located above the waterreceptacle, and an intermediate plateprovided with projections having openings in their upper extremitiesforming nozzles, and means for introducing water to the water-receptacleand forcing it up through the said nozzles and thence through the screenwhich is arranged to receive the pulp as it is fed to the table.

2. The combination with a concentratingtable, of a screen mounted onsaid table and arranged to receive the material as it is discharged tothe table, a plate located below the screen and provided withprojectionshaving openings in their upper extremities forming nozzles todischarge water through the screen, means located below the plate forforcing water up through the nozzles of the latter, whereby the finermineral values are made to pass through the screen, thus sepa ratingthem from the gangue and coarser particles, and means located below thescreen for removing said finer particles and conducting them to the bodyof the table at the rear of the screen.

3. The combination with a vibratory concentrating-table,of awater-receptacle mounted on the table and arranged to move therewith, aperforated plate located in said receptacle, a plate located above theperforated plate and provided with upward projections having openings intheir tops, and a screen of suitable mesh located above said last-namedplate, and means for feeding the material to said screen.

4. The combination with a concentrator of the class described, of awater receptacle mounted on the table and arranged to move therewith, ascreen mounted on the table above the water-receptacle and arranged tomove independently of the table, and means for forcing water from theWater-receptacle up through the screen, whereby the pulp as it fallsupon the screen encounters wash-water for the purpose set forth.

5. The combination with a concentratingtable, of a screen mounted on theportion of the table which receives the pulp, a plate located below thescreen and provided with upward projections having openings in theirtops, and means located below the said plate for forcing water upthrough the projections of the latter as the material is discharged onthe table for treatment.

6. The combination with a concentratingtable, of a screen mounted on theportion of the table to which the pulp is fed, a plate located below thescreen and provided with nozzles arranged to discharge water up throughthe screen, means located below said plate for forcing water up throughthe nozzles of the latter, as the material is discharged on the screenfor treatment, and means also located below the screen for receiving themineral particles which pass through the latter, and conducting them tothe body of the table, whereby they are segregated from the gangue andcoarser mineral particles, substantially as described.

7. The combination with a vibratory concentrating-table of the classdescribed, of a screen mounted above and resting on the portion of thetable to which the material is fed, means located below the screen forforcing water up through the latter, means for feeding to the screen,the material to be treated, and means for imparting to the screen alateral vibratory movement independently of the tables movement.

8. The combination with a concentratingtable of the class described of ascreen moun ttable to which the pulp is fed, means located below thescreen for forcing water up through the latter as the material isdischarged thereon for treatment, means also located below the screenfor receiving the mineral values which pass through the latter, andconducting them to the body of the table which is provided withprojections on the upper portion of its surface of the rear of thescreen, and riffles on its lower portion, substantially as described.

10. The combination with a concentratingtable, of a screen mounted onthe portion of the table which receives the pulp, and provided with aframe adjustable to regulate the tension of the screen, a plate locatedbelow the screen and provided with nozzles for discharging water upthrough the screen, and means located below the plate for forcing waterup through the nozzles of the latter as the material is discharged onthe table for treatment, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST TEN WINKEL.

Witnesses: I

DENA NELSON, A. J. OBRIEN.

